Abstract
To describe a series of six cochlear implant (CI) patients with an extraordinary peak in transimpedances. Retrospective case series. Tertiary referral center. Six adult CI patients who underwent transimpedance measurements and postoperative imaging. Intra- and postoperative transimpedance measurements and a visual inspection of transimpedance matrices (TIMs). The position of electrodes was radiologically identified. From six patients with TIMs showing an extraordinary peak in the off-diagonal area, five C electrode arrays showed no correct scalar localization in the scala tympani, and one had a correct scalar localization in the scala tympani. A peaking transimpedance might be a marker for scalar dislocation in CIs.
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